{"action":"created","issue":{"url":"https://api.github.com/repos/golang/go/issues/21297","repository_url":"https://api.github.com/repos/golang/go","labels_url":"https://api.github.com/repos/golang/go/issues/21297/labels{/name}","comments_url":"https://api.github.com/repos/golang/go/issues/21297/comments","events_url":"https://api.github.com/repos/golang/go/issues/21297/events","html_url":"https://github.com/golang/go/issues/21297","id":247826070,"number":21297,"title":"runtime: sweep increased allocation count","user":{"login":"heschik","id":24611692,"avatar_url":"https://avatars1.githubusercontent.com/u/24611692?v=4","gravatar_id":"","url":"https://api.github.com/users/heschik","html_url":"https://github.com/heschik","followers_url":"https://api.github.com/users/heschik/followers","following_url":"https://api.github.com/users/heschik/following{/other_user}","gists_url":"https://api.github.com/users/heschik/gists{/gist_id}","starred_url":"https://api.github.com/users/heschik/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/heschik/subscriptions","organizations_url":"https://api.github.com/users/heschik/orgs","repos_url":"https://api.github.com/users/heschik/repos","events_url":"https://api.github.com/users/heschik/events{/privacy}","received_events_url":"https://api.github.com/users/heschik/received_events","type":"User","site_admin":false},"labels":[{"id":373402289,"url":"https://api.github.com/repos/golang/go/labels/NeedsInvestigation","name":"NeedsInvestigation","color":"ededed","default":false},{"id":626114820,"url":"https://api.github.com/repos/golang/go/labels/release-blocker","name":"release-blocker","color":"b60205","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/golang/go/milestones/49","html_url":"https://github.com/golang/go/milestone/49","labels_url":"https://api.github.com/repos/golang/go/milestones/49/labels","id":2053058,"number":49,"title":"Go1.9","description":"","creator":{"login":"rsc","id":104030,"avatar_url":"https://avatars1.githubusercontent.com/u/104030?v=4","gravatar_id":"","url":"https://api.github.com/users/rsc","html_url":"https://github.com/rsc","followers_url":"https://api.github.com/users/rsc/followers","following_url":"https://api.github.com/users/rsc/following{/other_user}","gists_url":"https://api.github.com/users/rsc/gists{/gist_id}","starred_url":"https://api.github.com/users/rsc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rsc/subscriptions","organizations_url":"https://api.github.com/users/rsc/orgs","repos_url":"https://api.github.com/users/rsc/repos","events_url":"https://api.github.com/users/rsc/events{/privacy}","received_events_url":"https://api.github.com/users/rsc/received_events","type":"User","site_admin":false},"open_issues":2,"closed_issues":616,"state":"open","created_at":"2016-10-06T18:17:55Z","updated_at":"2017-08-04T06:13:06Z","due_on":"2017-07-31T07:00:00Z","closed_at":null},"comments":4,"created_at":"2017-08-03T20:29:09Z","updated_at":"2017-08-05T17:01:29Z","closed_at":null,"body":"We have reports inside Google of crashes like:\r\n```\r\nruntime: nelems=34 nalloc=2 previous allocCount=1 nfreed=65535\r\nfatal error: sweep increased allocation count\r\n```\r\nI've reproduced the problem and I have some confidence that it's a runtime or compiler bug, so I wanted to make sure that we had an external issue to represent the problem and track it as a release blocker. I'll update this as soon as we have detail that can be shared publicly."},"comment":{"url":"https://api.github.com/repos/golang/go/issues/comments/320454934","html_url":"https://github.com/golang/go/issues/21297#issuecomment-320454934","issue_url":"https://api.github.com/repos/golang/go/issues/21297","id":320454934,"user":{"login":"randall77","id":6889504,"avatar_url":"https://avatars0.githubusercontent.com/u/6889504?v=4","gravatar_id":"","url":"https://api.github.com/users/randall77","html_url":"https://github.com/randall77","followers_url":"https://api.github.com/users/randall77/followers","following_url":"https://api.github.com/users/randall77/following{/other_user}","gists_url":"https://api.github.com/users/randall77/gists{/gist_id}","starred_url":"https://api.github.com/users/randall77/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/randall77/subscriptions","organizations_url":"https://api.github.com/users/randall77/orgs","repos_url":"https://api.github.com/users/randall77/repos","events_url":"https://api.github.com/users/randall77/events{/privacy}","received_events_url":"https://api.github.com/users/randall77/received_events","type":"User","site_admin":false},"created_at":"2017-08-05T17:01:29Z","updated_at":"2017-08-05T17:01:29Z","body":"I have another fix which just uses typedmemmove to write the keys. It's just a  2-line change.\r\n"}}
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